Here \(\vec{g}_{i}\)  is the best estimate after \(i\)  patterns and \(\langle b \rangle _{i}\)  indicates the mean detector value up to the current pattern, and \(\vec{g}_{0}=\vec{0}\) . This algorithm, which we will refer to as traditional ghost imaging (TGI), has been extensively explored with different setups [1]}, [2]}.
